Outboard motor



Oct- 16, 1951- LE ROY s. HOLMES ET AL 2,571,245

OUTBOARD MOTOR Filed Sept 13, 1947 '2 Sheets-Sheet l INVENTOR. LEROY S. HOLMES RAYMOND J. SPANSK/ xiimw A TOR/VEYS.

Oct. 16, 1951 LE ROY s. HOLMES ET AL 2,571,245

OUTBOARD MOTOR Filed Sept 13, 1947 2 Sheets-Sheet 2 LEROY .5. HOLMES RAYMOND J. SPANSK/ A T TOR/V5 Y5 v Patented Oct. 16, 1951 Le Roy S. Holmes and Raymond J. Slpanskit;

. Detroit, Mich.

Application September I3, 1947; Serial No. 773',762'

2 Claims. (Cl. 115-18) 2: I right angles to'theshaft so asto'facilitaterotatidli of the latter;

The tube 23 is of such length as to abut at one end the hinge 23B of the handle which has" its pintle 23C slightly eccentric to the circular'hinge leaves; With'this arrangement' movement' of the l'i-aindle"22B toward alignment with the shaft 22 description and the accompanying drawings in which Fig.1. is asideelevation of an outboard moto and embodying the. present invention.

Fig. 2 is a section on line 2-2 of Fig. 1. Fig. 3 is a section on line 33 of Fig. 2. Fig. 4 is a section on:- line 4-4 of Fig. 2. Fig.v 5. is a section on line. 5--5 of Fig. 2. Fig. 6 is a plan view of' the bracket member. Fig. 7 is a perspective view of a starting pawl.

will cause a cam action and move the tube 23 toward the gear end of the shaft 22;

At its other end, the tube, 23 abuts a plate 23A surrounding shaft 22 and extending upwardly a short distance where it rests against a fulcrum 23E; The opening in plate 23A through which the shaft 22 extends provides a close sliding fit for the shaft and when the plate is thrust against v fulcrum 23E, it causes the shaft and plate to;

bind and hold the shaft against: rotation.

The gear 22A is meshed with ear 2013 so that rotation of shaft 22 will rotate tube I2 and associated parts and these may be locked in position H by means of the action just described.

As indicated in the drawings, the unit'i'ncludes an under water casing I0 carrying a propeller II and enclosing the usual gearing necessary to operate the propeller from a vertically arranged shaft enclosed in the tube I2 upon which the easing I0 is fixed.

The tube I2 is suspended from the engine containing housing I3 and the latter supported by a pair of brackets I4 forming part of a support 2| hinged as at MA to a clamp member I5 by means of which the unit is attached to a suitable portion of a boat (not shown).

Also suspended from the housing I3 is an exhaust pipe l6, suitably finned as indicated, which extends downwardly to discharge under water as at I1. The lower end of the exhaust is preferably provided with a collar I'IA within which, in a suitable bearing, the tube I2 rotates.

As shown best in Figs. 2 and 3, the upper end of tube I2 is fixed within a hub 20 having a stepped flange 20A and a helical gear 203. The flange 20A is carried in a suitable seat MA in the member 2|. The tube I2 is therefore supported independently of the engine housing I3 and exhaust I1 and rotatable.

Also carried by the member 2| is a pair of lugs 2 IA provided with aligned openings in which are fixed bearing bushings 2IB in which is mounted a shaft 22. Between the lugs 2IA and keyed to shaft 22 is a small helical gear 22A.

Shaft 22 is enclosed in a tube 23 and both extend forward of brackets I4 to a convenient location, the shaft 22 at its forward end having hinged thereto a suitable handle 22B, the normal position of which is vertical or at substantially Also carried by tube I2 is a small conduit for engine cooling water. This conduit extends from within the casing I0, suitable water inlets being provided, up alongside the tube I2 and through hub 28, opening at the upper face of the latter, into a circular groove in the lower face of the engine crankcase wall 3| and from this groove a passage 3IA leads to the water pump and cylinder water jacket (not shown). The outlet for the water is shown at 3 IB.

At its upper end, the crankshaft is shown as tapered and fixed in a suitable flywheel 35A housed in the bay of a horseshoe or U-shaped fuel tank 36 formed with a plate portion 36A extending over and covering the flywheel.

The plate 36A has mounted upon it starting means for the motor which consists of a reel 6!! rotatably suspended from the starter cover 69A, suitably fixed to plate 36A.

The upper face of the reel 40 is dished to receive a suitable clock spring 4|, one end of which is fixed to the reel as at MA while the other end is fixed asat 4 IE to the cover 40A.

In the channel 42 about the periphery of the reel is wound a rope or cable 42A, one end of which is fixed to the reel as at 423 while the other end extends through cover 40A and is provided with a suitable handle or knob 420 (see Fig. l)

The under face of reel 40 has fixed thereto upon suitable spacing legs 43 a plate 44 which, as shown in Fig. 5, is provided with several teeth 45 having abrupt forward faces and long sloping rear surfaces 46.

Carried upon the extended end of shaft 35 is a second plate 41 slightly larger than plate 46 and arranged opposite the latter.

This plate 41 is provided with a pair of rectangular openings near its edge and in said openings are mounted pins A. These consist of rectangular members A carrying two pins B and C set on opposite sides of the centerline of the member A. The pin C will rest on top of plate 41 and the pin B below and nearer the center of the plate.

Such pins 44A, when the engine is idle, automatically tilt inwardly and hence be in position to coact with the teeth 45, of plate 44. However, when the engine starts, centrifugal force will cause them to tilt outwardly away from plate 44.

The spring 4| is for the purpose of returning the reel 40 and rewinding the rope or cable 42A.

The engine will be provided with suitable accessories such as a carburetor, ignition system, etc., which, since they are conventional, are not being shown.

Now having described the invention and the preferred embodiment thereof, it is to be understood that said'invention is to be limited, not to the specific details herein set forth, but only by the scope of the claims which follow.

We claim:

1. In an outboard motor unit adapted to be mounted upon a boat, a rotatable underwater unit, a gear fixed upon the latter, a rotatable shaft carried by the unit mounting means and having fixed thereto a gear-adapted to coact with the first gear whereby to rotate said underwater unit, a handle for rotating said shaft, said handle being hinged to said shaft, a tube enclosing said shaft and abutting at one end said hinge, a plate loosely mounted on said shaft,

said tube at its other end abutting said plate,v

fixed fulcrum means adapted to coact with said plate adjacent an edge thereof, and cam means carried by said hinge and so arranged that, when said handle is swung toward alignment with said shaft, said tube is thrust against said plate to thereby incline the latter and lock said shaft against rotation.

2. In an outboard motor unit adapted to be mounted upon a boat, a rotatable underwater unit, a helical gear fixed upon the latter, a rotatable shaft carried by the unit mounting means and having fixed thereto a second helical gear adapted to coact with the first gear whereby to rotate said underwater unit, a handle for rotating said shaft, said handle being hinged thereto, a cam carried by said handle, and a member actuable by said cam and adapted to coact with a stationary element to lock said shaft against rotation.

LE ROY S. HOLMES. RAYMOND J. SPANSKI.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 881,324 Lowell Mar. 10, 1908 1,689,962 Peck Oct. 30,1928 1,824,213 Johnson Sept. 22, 1931 2,091,247 Williams Aug, 24, 1937 2,224,900 Conover Dec. 1'7, 1940 2,293,322 Veach Aug. 18, 19.42 2,335,597 Mathewson Nov. 30, 1943 2,386,703 McElmurray Oct. 9, 1945 FOREIGN PATENTS Number Country Date 345,103 Germany Dec. 5, 1921 37,608 Sweden Dec. 3, 1912 

